An item designed to automatically relieve vacuum, by the intake of air, when the internal pressure falls below atmospheric pressure. See also valve, vacuum regulating.
Classification: Other taps, cocks, valves, etc., nesoi
NSN 5950-01-254-9425
NSN 6240-01-265-6958
NSN 6645-00-429-0172
NSN 6105-00-764-0993
NSN 6135-01-574-6577
NSN 6105-00-012-8278
NSN 5930-00-984-4488
NSN 5925-01-438-3717
NSN 5990-01-269-2111
NSN 5945-01-351-5354
NSN 5965-01-005-0611
NSN 5999-00-597-5054